1123410515155 has 4 divisors (see below), whose sum is σ = 1348092618192. Its totient is φ = 898728412120.

The previous prime is 1123410515113. The next prime is 1123410515167. The reversal of 1123410515155 is 5515150143211.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1123410515155 - 2⁹ = 1123410514643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1123410515155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112341051511 + ... + 112341051520.

It is an arithmetic number, because the mean of its divisors is an integer number (337023154548).

Almost surely, 2^{1123410515155} is an apocalyptic number.

1123410515155 is a deficient number, since it is larger than the sum of its proper divisors (224682103037).

1123410515155 is an equidigital number, since it uses as much as digits as its factorization.

1123410515155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224682103036.

The product of its (nonzero) digits is 15000, while the sum is 34.

Adding to 1123410515155 its reverse (5515150143211), we get a palindrome (6638560658366).

The spelling of 1123410515155 in words is "one trillion, one hundred twenty-three billion, four hundred ten million, five hundred fifteen thousand, one hundred fifty-five".